Dear Friends
is depend only on your field means where u wanna go for working what u wanna do ?
See if you wanna do Job then you should do CS if wanna good knowledge in LAw(s) also then you can be easily Finance / Legal Manager or Vice president / President.
If dont have interest in Law then approach to CWA.
If you wanna go for Practice then forgot about CS or CWA just do any one course only among CS/CA/CWA because after being a CS/CA/CWA you can do practice only as on one profession.
you can do any course for additional degree but it wont help you in working as on that degree.
In this case i will suggest to do LLB (in case of practice) if you wanna grow on higher stage like you will represent before Tribunals and App. authority.
I know CS/CA/CWA can represent before Tribunals also but generalyl they dont because they dont have practical knowledge about it.
During LLB you learn this all things. So, It will help to you
Best of Luck Buddy
For any further detail pl. feel free to ask
Regards